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REMOVING HIGH-RISK COMPONENTS FROM K-25 DEMOLITION CONTINUES

January 20, 2013 – 10:43 pm |

In a complex task made more complicated by building conditions, historical restraints, and the fact that it was just plain hot, URS | CH2M Oak Ridge (UCOR) has safely removed the highest threat remaining at the mammoth K-25 building at the East Tennessee Technology Park (ETTP).

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Articles tagged with: k-33

MITIGATION OF HEXAVALENT CHROMIUM IN STORMWATER DEMOLITION OF K-33 LEADS TO CONTAMINATED CONCRETE DEBRIS

October 23, 2012 – 11:56 pm |
MITIGATION OF HEXAVALENT CHROMIUM IN STORMWATER DEMOLITION OF K-33 LEADS TO CONTAMINATED CONCRETE DEBRIS

American Recovery and Reinvestment Act (ARRA) funding was provided to supplement the environmental management program at several Department of Energy (DOE) sites, including the East Tennessee Technology Park (ETTP) in Oak Ridge, Tennessee. Demolition of the ETTP K-33 Building, the largest building to be demolished to date in Oak Ridge, was awarded to LATA-Sharp Remediation Services (LSRS) in FY2010 under the ARRA program. The K-33 building was an 82-foot-tall, two-story structure covering approximately 32 acres. Once this massive building was brought down to the ground, the debris was segregated and consolidated into piles of concrete rubble and steel across the remaining pad. The process of demolishing the building, tracking across concrete debris with heavy equipment, and stockpiling the concrete rubble caused the rubble to become pulverized. During and after storm events, hexavalent chromium leached from the residual cement present in the large quantities of concrete. Stormwater control measures were present to preclude migration of contaminants off-site, but these control measures were not designed to control hexavalent chromium that had been dissolved in stormwater from reaching nearby receiving water.